"albeit dubious" is correct and usable in written English.
This phrase is used when something is accepted, but only with reservations or doubt. Example: I accepted the argument, albeit dubious, that the new policy would be beneficial.
Ever since this early (albeit dubious-sounding) fanfare, whenever a pretty girl/D-list celebrity picked up a set of needles, you were guaranteed to find headline after headline proclaiming knitting the new yoga, or the new black, or the new whatever.
However the most exciting game involving the Associates, albeit of dubious quality, was between Scotland and Afghanistan in Dunedin.
Under the terms of the settlement, Skechers is still allowed to sell its toning shoes and make fitness claims about them, albeit less dubious ones.
They can argue from tradition, custom and Christianity — as Obama himself does, albeit with dubious sincerity, to explain why he backs civil unions but not full-fledged marriage.
Although neither Rebman nor Volland have the name recognition of Rojankovsky, in 1917 her illustrations and concept are artistically innovative (albeit pedagogically dubious), whereas in 1962 Rojankovksy's repetitive wild-life images and simplistic format look dated.
I met with him five or six times throughout my involvement, and was left with the impression that while he is not an artist he is most definitely a businessman, albeit a dubious one.
One of the pleasures of the film (albeit probably a dubious one) is its lack of moralising.
Is it not appropriate to be disappointed at someone engaged in ethically dubious, albeit legal, activities?
Changes to the rule book, in equipment, to facilities, to the size and racial makeup of the league and countless other variables render strict numerical comparison across eras a dubious, albeit entertaining, practice.
Where Libertarians had previously argued against the constitutionality of federal taxes--using dubious, albeit historical, arguments inspired by the campaign former Presidential candidate Ron Paul--Republicans who flocked to the 'tea party' movement arrived with conspiracy theories in tow.
